SMAJ43A TVS Diode SMA/DO-214AC 400W | 43V Transient Voltage Suppressor for Surge Protection | RUILON

RUILON

The SMAJ43A TVS Diode from RUILON is a high-reliability 400W transient voltage suppressor designed to protect sensitive electronic components from voltage spikes and electrostatic discharge (ESD). With a 43V stand-off voltage, this diode is engineered for fast response and efficient clamping of transient surges, ensuring optimal circuit protection in demanding applications. Built using advanced silicon avalanche technology, it offers fast switching speed, low leakage current, and precise clamping performance, making it ideal for safeguarding critical systems.

This device delivers excellent thermal stability and power dissipation, enabling it to withstand high peak pulse currents under 8/20µs surge conditions. Compared to lower voltage TVS diodes, the SMAJ43A provides a higher working voltage range, making it suitable for circuits that require increased voltage tolerance without compromising protection efficiency.

Encapsulated in the industry-standard SMA (DO-214AC) surface-mount package, the SMAJ43A supports compact PCB layouts and automated assembly processes. Its robust design ensures long-term reliability and consistent performance, even in harsh electrical environments.

Widely used in power supplies, automotive electronics, industrial control systems, telecommunications, and consumer electronics, the SMAJ43A TVS diode delivers dependable protection against transient overvoltage events. It is an ideal solution for engineers seeking efficient, space-saving, and high-performance surge protection.


Key Specifications:

  • Part Number: SMAJ43A
  • Peak Pulse Power Dissipation: 400W (8/20µs)
  • Stand-off Voltage (VRWM): 43V
  • Breakdown Voltage: ~47.8V – 52.8V
  • Clamping Voltage: ~69.4V
  • Response Time: Picoseconds
  • Leakage Current: Low
  • Package: SMA / DO-214AC
  • Type: Unidirectional TVS Diode

Applications:

  • Power supply protection
  • Automotive electronics
  • Industrial equipment
  • Telecom and networking devices
  • Consumer electronics

Key Features:

  • 400W peak pulse power capability
  • Fast response time for transient suppression
  • Low leakage current and high efficiency
  • Precise clamping voltage performance
  • उत्कृष्ट thermal stability and reliability
  • Compact SMA package for space-saving design
  • Suitable for high-voltage protection applications